Online research in philosophy

Isocrates' Antidosis ("Defense against the Exchange") and Aristotle's Protrepticus ("Exhortation to Philosophy") were recovered from oblivion in the late nineteenth century. In this article we demonstrate that the two texts happen to be directly related. Aristotle's Protrepticus was a response, on behalf of the Academy, to Isocrates' criticism of the Academy and its theoretical preoccupations. -/- Contents: I. Introduction: Protrepticus, text and context II. Authentication of the Protrepticus of Aristotle III. Isocrates and philosophy in Athens in the 4th century IV. (...) The Protrepticus of Aristotle as a response to the Antidosis of Isocrates V. Conclusion: dueling conceptions of philosophy, still dueling. (shrink)

Abstract: An appreciation of the "more philosophical" aspects of ancient medical writings casts considerable light on Aristotle's concept of nature, and how he understands nature to differ from art, on the one hand, and spontaneity or luck, on the other. The account of nature, and its comparison with art and spontaneity in Physics II is developed with continual reference to the medical art. The notion of spontaneous remission of disease (without the aid of the medical art) was a controversial subject (...) in the medical literature, and Aristotle's aporia about the notion of spontaneous generation of natural things runs parallel to this controversy. Aristotle's account of spontaneous generation in the Metaphysics and in the Generation of Animals can also be profitably illuminated by looking at the comparison with medicine in detail. The result, hopefully, is a clearer and more consistent picture not only of Aristotle's concepts of nature, art, and spontaneity, but also of the influence of medical writings and concepts on his natural philosophy. Joel Mann has written a commentary on the essay published in the Proceedings. (shrink)

Critics have alleged that Democritus’ ethical prescriptions (“gnomai”) are incompatible with his physics, since his atomism seems committed to necessity or chance (or an awkward combination of both) as a universal cause of everything, leaving no room for personal responsibility. I argue that Democritus’ critics, both ancient and contemporary, have misunderstood a fundamental concept of his causality: a cause called “spontaneity”, which Democritus evidently considered a necessary (not chance) cause, compatible with human freedom, of both atomic motion and human actions. (...) Some influential contemporary compatibilists have argued that freedom and responsibility are compatible with causal determinism, but not intentional constraint where some other agent is intentionally manipulating or coercing one’s actions. In line with this, Democritus holds that humans should not blame their actions on other agents like the gods, or agent-like external forces like fate or chance, but should assume ultimate intentional control over their own choices and actions. The famous remark of his associate Leucippus that “everything happens for a reason and out of necessity” is a fitting slogan of their atomistic philosophy, for Democritus pursued what can without anachronism be recognized as a causal theory of freedom. (shrink)

For an Aristotelian observer, the halo is a puzzling phenomenon since it is apparently sublunary, and yet perfectly circular. This paper studies Aristotle's explanation of the halo in Meteorology III 2-3 as an optical illusion, as opposed to a substantial thing (like a cloud), as was thought by his predecessors and even many successors. Aristotle's explanation follows the method of explanation of the Posterior Analytics for "subordinate" or "mixed" mathematical-physical sciences. The accompanying diagram described by Aristotle is one of the (...) earliest lettered geometrical diagrams, in particular of a terrestrial phenomenon, and versions of it can still be found in modern textbooks on meteorological optics. (shrink)

A review essay about Carl Huffman's recent edition of the fragments of Archytas of Tarentum, along with translations of dubious material rejected by Huffman.

An overview of the influence of Lucretius poem On the Nature of Things (De Rerum Natura) on the renaissance and scientific revolution of the seventeenth century, and an examination of its continuing influence over physical atomism in the nineteenth and twentieth centuries.

Aristotle's has been the most influential philosophy in the whole history of science. Monte Johnson examines its most controversial aspect: Aristotle's emphasis on the importance of goals and purposes to scientific understanding--his teleology. In some cases this policy has proved deeply flawed, for example in his earth-centric cosmology, or his anthropology purporting to justify slavery and male domination. But in many areas Aristotle's teleology has been successful, and remains influential, for example in adaptationist evolutionary theory, embryology, and genetics. Johnson's book (...) shows also how Aristotle's theory has profound implications for environmental ethics and for the theory of value in general. (shrink)

Authenticates approximately 500 lines of Aristotle's lost work the Protrepticus (Exhortation to Philosophy) contained in the circa third century AD work by Iamblichus of Chalcis entitled Protrepticus epi philosophian. Includes a complete English translation of the authenticated material.

Pierre Gassendi was a major factor in the revival of Epicureanism in early modern philosophy, not only through his contribution to the restoration and criticism of Epicurean texts, but also by his adaptation of Epicurean ideas in his own philosophy, which was itself influential on such important figures of early modern philosophy as Hobbes, Locke, Newton, and Boyle (to name just a few). Despite his vigorous defense of certain Epicurean ideas and ancient atomism, Gassendi goes to great lengths to differentiate (...) his philosophy from Epicureanism on certain key points. In this paper I argue that those key points on which Gassendi rejects and and criticizes the Epicurean view, such as the immortality of the soul and divine creation of the cosmos, are central not only to Epicureanism, but also to Gassendi's own philosophy. In order to see Gassendi's philosophy for what it is, and understand its role in the history of natural theology, we need accept and understand better why he rejected the central theses of Epicureanism. (shrink)

A review and comparison of two recent and very different monographs about Aristotle's Categories: W. R. Mann "The Discovery of Things" and Robert Ward's "Aristotle in China".

I argue against Deborah Nails that Plato, like Aristotle, frequently used the term "ousia" to indicate what is ontologically fundamental, and that he did so throughout all periods of his writing.